Right-clicking individual files or folders causes the file explorer for the directory to hang for 30 seconds after which the context menu finally appears.
This happens only when right-clicking individual files or folders that are available offline. Interestingly, it does not happen when right-clicking with multiple files or folders selected, or files only available online. Right-clicking on the SkyDrive directory itself, or the empty space (to access sorting options, etc) does not cause any problems.
I was hoping to take advantage of the SkyDrive integration in Windows 8.1, and this issue is what's preventing me from jumping in completely. I'd be grateful for a resolution, but I wouldn't mind if others could comment on whether they can reproduce this issue.